My rabbits head is leaning to one side and his right back leg is limp he is stil eating and drinking and hopping about but he is falling over now & again wot does this mean? What should i do?

Take him to the vet something is wrong.

It is possible that he has a severe case of bone damage and fracture....take him to the vet before it becomes too severe....That is the only hope....Good luck!

If its an older rabbit it could have suffered a stroke. It usually affects one side of the body. It needs to be seen by the vet.

There is a condition rabbits can get called head tilt, take him to the vet ASAP it can be helped if it is caught early but it can go down hill fast.

Sourse (rabbit rescue)

Could be an ear infection, would be best to go to a vet though - especially if things get worse

It certainly sounds serious, take him to the vet asap.
Hope he's better soon.